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Effect of Forced-Air Warming and Circulating-Water Mattress in Preventing Heat Loss During Vascular Surgery
This study has been completed.
First Received: May 14, 2008   Last Updated: February 10, 2009   History of Changes
Sponsored by: Mahidol University
Information provided by: Mahidol University
ClinicalTrials.gov Identifier: NCT00712023
  Purpose

The purpose of this study is to determine whether a custom-made forced-air warming mattress can prevent heat loss in patients undergoing vascular surgery better than a circulating-water mattress


Condition Intervention Phase
Hypothermia
Vascular Surgery
Forced-Air Warming Mattress
Circulating-Water Mattress
Device: warming device (a reusable, custom-made forced- air warming mattress)
Phase II

MedlinePlus related topics: Drinking Water Hypothermia Surgery
U.S. FDA Resources
Study Type: Interventional
Study Design: Prevention, Randomized, Open Label, Historical Control, Parallel Assignment, Safety/Efficacy Study
Official Title: Effect of Forced-Air Warming and Circulating-Water Mattress in Preventing Heat Loss During Vascular Surgery

Further study details as provided by Mahidol University:

Primary Outcome Measures:
  • skin and nasopharyngeal temperature [ Time Frame: 180 min ] [ Designated as safety issue: Yes ]

Secondary Outcome Measures:
  • burn wound [ Time Frame: 3 days ] [ Designated as safety issue: Yes ]

Enrollment: 44
Study Start Date: July 2007
Study Completion Date: September 2008
Primary Completion Date: September 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
1: Active Comparator
warming by circulating-water mattress
Device: warming device (a reusable, custom-made forced- air warming mattress)
2=forced-air warming mattress 1=circulating-water mattress
2: No Intervention
Forced-air warming mattress

Detailed Description:

A reusable, custom-made forced-air warming mattress was made of a light to medium weight water resistant canvas, sewn like mattress with 2 arms placed underneath the patient. An open hole at proximal part of one arm was designed to attach with a hose of warm air delivery device. Small holes (2-3 mm2), 5 inches apart were punched on the upper surface of this mattress around the patient except for the area underneath the patient that the holes were 9 inches apart. The weight of the patient will obstruct the air flow and prevent direct blowing of warm air onto the underside of patients. There is a special appendage connected to the upper part of mattress which can connect warm air to cover the patient's chest. There is a special appendage connected to the upper part of mattress which can convect warm air to cover the patient's chest. The mattress is 97 inches x 97 inches, with 2 arms of 25 inches x 16 inches and a special appendage of 45 inches x 12 inches for covering the chest with warm air delivery. This size is proper for patient of 170 cm. height. In order to reuse it, the mattress can be washed, dried and sterilized by gas or autoclaved for more than 50 times. A sterile sheet well enhance the sterile environment of the operating field.

  Eligibility

Ages Eligible for Study:   20 Years to 85 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

Patients undergoing vascular surgery

Exclusion Criteria:

Preoperative fever

  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00712023

Locations
Thailand
Departnment of Anesthesiology,Siriraj Hospital, Mahidol University
Bangkok, Thailand, 10700
Sponsors and Collaborators
Mahidol University
Investigators
Principal Investigator: Suwannee Suraseraniwongse, MD Mahidol University
  More Information

No publications provided

Responsible Party: Department of Anesthesiology, Siriraj Hospital, Mahidol University ( SUWANNEE SURASERANIVONGSE )
Study ID Numbers: Si 196/2007, 003(1)/50
Study First Received: May 14, 2008
Last Updated: February 10, 2009
ClinicalTrials.gov Identifier: NCT00712023     History of Changes
Health Authority: Thailand: Ethical Committee

Keywords provided by Mahidol University:
Hypothermia
Vascular surgery
Forced-air warming mattress
Circulating-water mattress

Study placed in the following topic categories:
Signs and Symptoms
Hypothermia

Additional relevant MeSH terms:
Signs and Symptoms
Hypothermia
Body Temperature Changes

ClinicalTrials.gov processed this record on May 07, 2009